Assigbtor to cromptoit



H. LE DOUX.

STOP MOTION FOR LOOMS.

APPLICATION FILED MAR, 20. 1917.

1,307,01 2. Patented June 17, 1919.

5 SHEETS-SHEET 1.

3v Ma M A H. LE noux.

ST OP MOTION FOR LOOMS.

APPLI'CATION FILED MAR. 20, 1911.

Patented June 17, 1919.

5 SHEETS-SHEET 2.

. H. LE DOUX.

STOP MOTION FOR LOOMS. APPLICAITION FILED MAR.'20. 1911.

1,307,012. Patented June 17', 1919.

5 SHEETS-SHEET 3- m: NORRIS "mes m. Fucw-Lrmm. wksnma ran. 0. c.

H. LE DOUX.

STOP MOTION FOR LOOMS.

APPLICATION FILED MAR. 20. I917.

1,307,012. PatentedJune 17, 1919.

5 SHEETS-SHEET 4- m5 NORRIS FEYERS cm. Pnomuma. wismmirvu, 04 c.

H. LE ooux.

STOP MOTION FOR LOOMS.

APPLICATION FILED MAR-20.1917.

1 9307,01 2. Patented June 17, 1919.

5 SHEEIS-SHEET 5.

sTa Es EaTEET oEETcE.

HECTOR LE DOUX, 0E WORCESTER, MASSACHUSETTS, ASSIGNOR To CEoMrToE &KNOWLES LOOM WORKS, or WORCESTER, MASSACHUSETTS, A ooEroEATIoE OFMASSACHUSETTS.

' STOP-MOTION FOR LOOMS.

V eonora.

Specification of Letters Patent.

Patented June 1?, 1919..

To all whom it may concern Be it known that I, HECTOR LE DoUx, a citizenof the United States, residing at Worcester, in the county of Worcesterand State of Massachusetts, have invented a new and useful Stop-Motionfor Looms, of which the following is a specification.

This invention relates to a stop motion for looms, particularly designedfor use in a loom having a positive shuttle motion.

It is the object of my invention to provide an improved stop motion forlooms having a positive shuttle motion, which shall become operative tostop the loom whenever a shuttle is not properly boxed.

With this general object in view, an important feature of my inventionrelates to the provision of shuttle feelers positioned to engage ashuttle at each end of its path of travel, and connected to controlloomstopping mechanism.

In the double shuttle loom shown in the drawings, separate pairs offeelers are provided for the upper and lower shuttles, and all of saidfeelers are connected to control a Single loom-stopping mechanism. Anadditional feature of my invention relates to the provision ofconnections whereby a weft detector or filling fork independentlycontrols the Same stopping mechanism.

Further features of my invention relate to the provision of means forperiodically rendering the shuttle feelers inoperative, and to theprovision of a reciprocating vibrator cooperating with. avibrator-engag- :ing member to stop the loom whenever the weft fails ora shuttle is not properly boxed.

My invention further relates to certain arrangements and combinations ofparts which will be hereinafter described and more particularly pointedout in the appended claims.

A preferred form of my invention is shown in the drawings in whichFigure 1 is a front elevation. of a loom having my improvements embodiedtherein Fig. 2 is a right-hand side elevation o. the loom shown in Fig.1;

Fig. 3is a sectional side elevation taken along the line 3-3 in Fig. 1;

Fig. 4 is a front elevation of the devices for supporting and.yieldingly positioning two of the shuttle feelers;

Fig. 5 is a right-hand elevation of the parts Shown in Fig. 4;

Fig. 6 is an enlarged side elevation of the vibrator-engaging member andthe connect ons by which it is moved to operative posltion;

Fig. 7 is a top plan view of the filling fork and slide, and

Fig. 8 is a side elevation of the parts shown in Fig. 7.

Referring to the drawings, I have shown a double shuttle loom havingshuttle boxes 10, 11, 12 and 13 adapted to receive positively-actuatedshuttles 141 and 15. The mechanism for actuating the shuttles forms nopart of my invention and may be of any usual type adapted to move theshuttles simultaneously in opposite directions.

A lay L (Fig. 1) supports a reed R and is operated to beat upthe fillingin the usual way. As the shuttles are continuously supported in theirflight the lay omits the usual shuttle race. The operating mechanism forthe lay may be of any usual type and is omitted from the drawings forthe sake of clearness.

A pair of shuttle feelers 16 and 17 (Figs. 2 and 3) are provided forengaging the shuttle 141 at each end of its path of travel, and a secondpair of feelers 18 and 19 are provided for engagement with the lowershuttle 15.

I will first describe the connections and operations of the feeler 16.The feeler 16 is mounted in a hub or casting 20 (Figs. 4: and 5) whichis free to turn upon a fixed stud 21 rigidly supported on the loom frameF, the hub being retained upon the stud by a collar 22. The feeler 16 isyieldingly ad vanced into the path of the shuttle 1. 1 by a spring 23connected at one end to the hub 20 and at the opposite endto a collar24.- fixed in adjusted position on the stud 21.

A wire or rod 25 is fixed in the hub or casting 20 and extends laterallybeneath a stud 26 (Fig. 2) mounted on the end of an arm 27 fast to ashaft 28 (Fig. 1) mounted in bearings in the loom frame F. A second arm30 (Figs. 2 and 6) is fixed to the shaft 28 and is link-connected to anengaging member 31 pivoted at 32 to a lever 33 mounted upon a stud 34 onthe loom frame. The lever 33 is connected by a rod or link 35 toloom-stopping mechanism, (not shown), the connections being so arrangedthat movement of the engaging member 31 toward the front pf the loomwill cause the stopping of the 00m. r Y

The" link which-"connects the arm 30 to the member 31 comprises a partpivoted to thearm '30 and'a rod 456 pivoted to the mem- 'ber 31 andslidable in bearingson the part The link-is normally contracted by aspring 17 interposed between acollar 18 fixed to the rod io'an d oneofthe'bearings on the part 45. A-second collar 49 fixedtothe rod' 46limits the contraction of the link.

The arm 30*a'nd' the'menrber 31 are thusconne'otedi-nsuch aWvaythat-theparts can yield if 'the arm 30 is raised while the vibrator "4'0abovethe member 31.

When-the slnit'tle 14: "is out of the box 11, thesprin'g 23 moves thecolor 16 into the box andatthe same time through the rod 25, the

"arm'27, thesha'ft .28,' the arm 30 and the link the shuttle 15 fails toenter the'box 13.

15ei6 it moves the engaging-'member 31 into the path oi" the vibrator40.

The "feeler 18 (Fig. 2) ismountedupon a'stud 50 and is providedwith arod 51 extending :beneath the stud 26 and the arm 27 and is similarly:eii'e'ctwe to raise the member 31 intothe jpath ofthe vibrator 40 ifThe feeler 17 (Fig. 3) on the left-hand side of the loo'm ismountedon afixed pivot 52 and is connected by a link 53 to "111 arm '54: fast]ona"horizontal' shaft 55 (Fig. 1) mounted in bearings in theloomframe F.

A "second arm 56 (Fig. 2) secured to the shaft 55 is connectedby a link57 to the "hub or castin 20oi' the teeler 16. "In this way the feelers'16*an'd' 1.7r'1are"connected to operate siin'ultaneouslyn in connectionwith the shuttle 1 1.

The feeler 19 is similarly connected "througlra link 00,1. shaft 61 anda second link 62 to the. hub of tl1e"feeler'18-'and the feelers 18 and19 thus "cooperate to control the shuttle 15. I

' With these connections it will beevident that the boxing of the ishuttle 14 at either sideof'the' loom willlmver the rod 25, thuspermitting the engagingunembertl to move to inoperative position.

however, cannot take placeunless the'shuttle u'ch l movement,

'16 is alsoproperly boxed and cooperates *rodbl. Thus if the shuttlesare both propwith one of the feelers 1801' 19 to lower the erly boxedthe member 3l'will be lowered to inoperative position, but it eithershuttle is out of its proper posltion the loom stopping mechanism Willbe rendered operative.

and 15.

The cam 18 which operates the vibrator 40 is rotated through the gearsand pinions shown in Fig. 2, and makes several revolutions to eachactuation of'the shuttles 14C The vibrator 40 is thus reciprocatedseveral times during the rather slow travel of the shuttles from oneside of the loom to the other, and would stop the loom during the fiightof the shuttles if provision were not made for moving the member 31 toinoperative position during this period.

Such provisionis shown in Fig. 3, and comprises arms 63 and 6 1 securedto the shafts-55 and 61 respectively and connected bylinks '65 and 66 toa lever 67 intermittently actuated by a cam 68 whichvrotates once foreach flight of the shuttles. The rods and 66 have pin andslotconnections with the lever 67, thereby providing :a

limited lost motion.

'VVhen' the lever 67 is in the position shown in Fig. 3, the feelers arefree to engage the shuttles and if theshuttles are not properly boxedthey are permitted by thelostxmotion connections to move farther intothe boxes, thereby causing the stopping of the loom. During the greaterpart of the revolution of the cam 68, however, the lever (57 is movedtothe posltron shown 111 dotted lines, in

which position it withdraws each of the'teelers from its shuttle box anddepresses the 'rods 25 and 51, thus permittingthe member 31 to move toinoperative position.

I have thus provided means for separately engaging eachshuttlein eithershuttlebox and for stopping: the loom if either shuttle fails to boxin'one or theotherof its shuttle boxes and I havefurther provided Ameans for "rendering-the shuttle feelers inoperative during the flight'ofthe shuttle. Vhilethe mechanism "is shown and describedas adaptedto adouble shuttle loom,

it will be evident thatcertain featuresof said mechanism may be used toequal advantage in a loom having asingle posi' tively-aetuated shuttle.My improved stop motion is shown herein in connection with m inwhichthe' shuttles-are positively actuated. The particular method of'iaetu- *ating the shuttles is, :howjever, immaterial,

and' the advantages of my invention may be fully :utilizedin a loom "inwhiclrthe shuttles are not positivelyactuated.

In Figs. 7 and8 I have shown aifilling iork 7 0 mounted in a fork slide71 slidabie 1n :a stand 72 :and' connected 'by an arm 7 3 to a shortshaft '74: pivoted in the-loom 'frame' F. A second arm 7 5 (Fig. 3)mountber'31. An actuator 80( Fig. 8) is pivoted at 81 to the stand 72andisconnected by a shaft 8% (Fig. 1) mounted in bearings 85 (Fig. 8) and86 (Fig. 2). A cam follower 87 is secured to the shaft 8t and engages arotating cam 88 shown in dotted lines in Fig. 2.

The actuator 80 is thus continuously vibrated and upon failure of theweft the hook of the fork 70 is engaged by the actuator, thus moving theslide 71 to the left (in Fig. 8), which movement through the connectionsdescribed raises the member 31 into the path of the vibrator l0, thusstopping the loom. A spring 90 returns the filling fork slide after suchengagement.

I thus provide weft detecting mechanism adapted to cooperate with theshuttle feelers and I employ a single loom-stopping mechanism for usewith these two sets of control devices.

a A hand shipping lever 91 is pivoted at 92 to the frame F and isconnected to the lever 33 for stopping the loom manually. A spring 93(Fig. 6) partially counterbalances the weight of the member 31 and theparts associated therewith.

Having thus described my invention, it will be evident that changes andmodifications can be made therein by those skilled in the art withoutdeparting from the spirit and scope of my invention as set forth in theclaims, and I do not wish to be otherwise limited to the details hereindisclosed, but what I claim is 1. In a double shuttle loom, incombination, a pair of shuttles, actuating means therefor, separateshuttle feelers for each shuttle at each side of the loom, said feelersbeing connected in pairs so that the two feelers for each shuttleoperate together, normally operative loom stopping mechanism, andconnections from said feelers to said mechanism, each pair of feelersassociated with :the same shuttle being independently effective tomaintain said loom stopping mechanism in operative position until ashuttle is boxed in one or the other of the shuttle boxes controlled bysaid pair of feelers.

2. In a double shuttle loom, in combination, a pair of shuttles,actuating means therefor, separate shuttle feelers for each shuttle ateach side of the loom, and means to stop the loom including a membernormally maintained by said shuttle feelers in operative position butreleased by said feelers and permitted to move to inoperative positiononly when both shuttles are properly boxed either at the same or atopposite sides of the loom.

3. In a double shuttle loom, in combination, a pair of shuttles,actuatin' means therefor, separate shuttle feelers 'or each shuttle ateach side of the loom, connections whereby the two feelers for eachshuttle operate together, loom stopping mechanism, connections from eachpair of feelers to said mechanism, whereby either pair of feelers mayrender said mechanism operative, a filling fork, connections wherebysaid filling fork may independently control said stopping mechanism, andmeans to render said shuttle feelers periodically inoperative, saidfilling fork control continuing operative.

4-. In a double shuttle loom, in combination, a pair of shuttles,actuating means therefor, loom stopping mechanism including a membermovable into and out of operative position, a pair of shuttle feelersfor each shuttle, connections from each pair of feelers to said memberwhereby each pair of feelers is rendered independently effective to movesaid member to operative position, a filling fork, and additionalconnections from said filling fork to said member where by said fillingfork is rendered effective to independently move said member tooperative position.

5. In a double shuttle loom, in combination, a pair of shuttles,actuating means therefor, a pair of shuttle feelers for each shuttle, avibrator, a cam to actuate said vibrator, means to rotate said camcontinuously, a movable vibrator-engaging member, connections throughwhich said member when engaged by the vibrator is effective to stop theloom, and means independently controlled by each pair of shuttle feelerseffective to control the movement of said member into and out of thepath of said vibrator.

In testimony whereof I have hereunto affixed my signature.

HECTOR LE DO UX.

Gopieu of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

